Nope not for the Ranger. Just plug it into the headlight connector. My wife's Murano need a relay that connected to the battery.

Info on how to install. The 9007 bulb is almost at the bottom of the page.

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(SOLD) 2003 Ranger 4.0L V6 FX4
2001 F150 Supercrew Triton V8 (DD)
2008 Fusion 3.0L SEL V6 (my baby)
1992 Taurus SHO MTX (my toy-almost Supercharged)
2004 Nissan Murano SL AWD (Wife's car)